- used in respiration). In some mites, the
stigmata are ****ociated with
peritremes: paired, tubular,
elaborated extensions of the
tracheal system. The higher...
- irregularly. Each
posterior spiracle (anal spiracle)
lacks a
clearly defined peritreme and each has
three spiracular openings (in
mature larvae).
These are usually...
- with 10 or more
robust spines around the
spiracular area,
incomplete peritremes, an
indistinct or
absent button, and
bands of
small spines on each segment...
- (a
snail s****), the lip is the free
margin of the
peristome (synonym:
peritreme) or
aperture (the opening) of the
gastropod s****. In
dextral (right-handed)...
- The
parietal wall is
covered with a
thick callus,
which renders the
peritreme complete. This
species occurs in the
Pacific Ocean off
British Columbia...
-
sides or bent down. The
metathoracic scent gland has an
ostiole with a
peritreme and a deep furrow. The
sutures on the
underside of the
abdominal segments...
-
based on the
presence of a
broadened flattened telson, a
broad flattened peritreme encircling the ozopores,
paranota with a thin
lateral edge, the ozopores...
- insertion. The
parietal wall is
covered by a
thick callus,
which renders the
peritreme practically complete. This
marine species occurs off Port Alfred, South...
- by an
incomplete peritreme. The
third instar is 8.5–17 mm in length. The
posterior spiracles are now
large and have a
broad peritreme. They have also developed...
-
setae and
pores on the
sternal shield. It has a long and wide-looped
peritreme, and the
trochanter of the
palpus lacks a seta. When
pupae were removed...
